<p>Is it long enough to pull back away from your face and tie in a band? I think the most important thing is to make sure it is squeaky clean and neat, and does not “distract” from your overall appearance. If it is of concern to you, you could mention right off the bat why you wear your hair long-“my grandfather had cancer a year back and, since his recovery, I’ve tried to donate to Locks of Love when I can”. This is a completely acceptable, and compassionate reason for your choice to grow your hair long. No one with a heart should think the worse of you after hearing you say that. Good luck with the interview!</p>